Helmet bag



FIG. 1 is a front perspective view of a helmet bag;

FIG. 2 is a front plan view of a helmet bag;

FIG. 3 is a back plan view of a helmet bag;

FIG. 4 is a side plan view of a helmet bag;

FIG. 5 is a side plan view of a helmet bag;

FIG. 6 is a top plan view of a helmet bag; and,

FIG. 7 is a bottom plan view of a helmet bag.

The broken lines in FIG. 7, showing a motorcycle helmet represents an environmental portion of the design that forms no part of the claim. 

I claim the ornamental design for a helmet bag, as shown and described. 